Calculating-machine.



PATENTED NOV. 24, 1903. W. LE G. BUNDY & A. R. BOYNTON.

CALCULATING MACHINE.

APPLICATION FILED SEPT. 9, 1901.

12 SHEETS-SHBET 1.

NO MODEL.

\ l VENTORS WMM M WW ATT0BNEY5 No. 745.149. PATENTED NOV. 24, 1903. W.'LE G. BUNDY & A. R. BOYNTON.

CALCULATING MACHINE.

APPLICATION FILED SEPT. 9. 1901.

N0 MODEL. 12 SHEETS-SHEET 2.

ATTORNEY5 No. 745,149. PATENTED NOV. 24, 1903.

W. LEG. BUNDY & A. R. BOYNTQN.

CALCULATING MACHINE.

APPLIUATION FILED SEPT. 9, 1901.

N0 MODEL. 12 SHEETS-SHEET 3.

IMVQ-IBWA-K/(M No. 745,149. PATENTED NOV. 24, 1903. W. LE G. BUNDY & A.R. BOYNTON. CALCULATING MACHINE.

APPLICATION FILED SEPT. 9. 1901.

N0 MODEL. 12 SHEETS-SHEET 4.

= INVENTORS 9* r A 8 Wm m %m ...W,.* U..;;.%

' K w lw ATTORNEYS No. 745,149. PATENTED NOV. 24, 1903.

W. LE G. BUNDY & .A. R. BOYNTON. CALCULATING MACHINE.

APPLIUATION FILED SEPT. 9, 1901.

N0 MODEL.

12 SHEETS-SHEET 5.

2M7 fiwtm y ATTORNEY 3 No. 745,149. PATENTED NOV. 24, 1903. W/LE G.BUNDY & A. R. BOYNTON.

CALCULATING MACHINE.

APPLICATION IILED SEPT. 9, 1901.

12 SHEETS-SHEET 6.

N0 MODEL- ATTORNEY PATENTED NOV. 24, 1903. W. LE G. BUNDY & A. R.BOYNTON.

CALCULATING MACHINE.

APPLIOATION FILED SEPT. 9, 1901.

NO MODEL. 12 SHEETS-SHEET 7.

K WITNESSES:

p AL I'NVENTOR 0? M w [W ATTORNEYS w: Norms puma co, mow-mun,WASHINSTCN, n. c

No. 745,149. PATEN-TED NOV. 24, 1903. W. LE G. BUNDY & A. R. BOYNTON.CALCULATING MACHINE.

APPLIOATION FILED SEPT. 9, 1901.

N0 MODEL. 12 SHEETS-SHBET 8.-

WITNESSES: INVENTOR s ATTORNEYS No. 745,149. PATENTED NOV. 24, 1903.

y W. LE G. BUNDY,& A. R. BOYNTON.

CALCULATING MAGHINE.

APPLICATION FILED SEPT. 9, 1901.

12 SHEETS-SHEET 9.

no MODEL.

wENTOR 3 ATTORNEYS PATENTED NOV. 24, 1903. W. LE G. BUNDY & A. R.BOYNTON.

CALCULATING MACHINE.

APPLICATION FILED SEPT. 9, 1901.

N0 MODEL.

12 SHEETSSHBBT l0.

mmv

- QC \Q S @W m bk R w @Ma-w MA W No. 745,149. PATENTED NOV. 24, 1903.

W. LE G-BUNDY & A. R. BOYNTON.

CALCULATING MACHINE.

APPLICATION FILED SEPT. 9, 1901.

NO MODEL. 12 SHEETS-SHEET 11.

INVENTORS ATTORN EYS No. 745,149. I PATENTED NOV. 24, 1903.

W. LE G. BUNDY &- A. R. BOYNTON.

CALCULATING MACHINE.

APPLIOATION FILED SEPT. 9, 1901. N0 MODEL. 12 SHEETS-SHEET l2.

0) N lllllll llllll WITNESSES: 9Q INVENTORS ATTORNEYS UNITED STATESIatented November 24, 1903.

PATENT Onrrcn.

WILLARD LE GRAND BUNDY AND ALONZO R. DOYNTON, OF BINGIIAMTON, NEW'YORK,ASSIGNORS TO THE BUNDY MANUFACTURING COMPANY,

A CORPORATION OF NEW YORK.

CALCULATING-MACHIN SPECIFICATION forming part of Letters latent No.745,149, dated November 24, 1903.

Application filed September 9, 1901. $erial No. 74,795. (No model.)

To aZZ whom it may concern:

Be it known that we, WILLARD LE GRAND BUNDY and ALONZO R. BOYNTON,citizens of the United States, and residents of Binghamton, in thecounty of Broome and State of New York, have invented certain new anduseful Improvements in Calculating-Machines, of which the following is aspecification.

Our invention relates to calculatingma- IO chines and to machines forbringing suitable characters upon a printing, reading, or adding line.It has for its object to improve and simplify such machines and toreduce their cost, to make them easier and more certain [5 in operation,and generally to improve the construction and mode of operation of suchmachines; also, to provide improved means for preventing the actuationat the same time of more than one key of aseries and for locking intheir set position such keys as are operated until the machine hascompleted its work and means, preferably automatic, for releasing suchkeys, preferably all at the same time; also, means for preventing therelease of keys that have been set at the close of the operation of themachine in order to permit the printing a second time of the charactersrepresented by the set keys; also, means for releasing the keys afterthey have been set 0 and before the machine has been operated to remedymistakes that may have been made in setting the keys; also, to providenew and improved and simplified means for operating such machines andfor actuating the main 5 parts of the machine from one source of powerand by one simple movement, preferably by the turning of a crank; also,to cause the operating-crank to always turn in the same direction; also,to provide a new and improved 4o shaft to transmit motion to thetype-wheels andadding-wheels adapted to permit the operating-crank to beturned in one direction only, and yet to allow the type-Wheels to bemoved independently of each other to their proper respective positionsand to be returned to their original positions when the W011: of themachine is completed after each opera:

tion of the machine; also, to provide new and improved connectionsbetween such a shaft and the type or adding Wheels; also, to stop thecrank at the end of each revolution to prevent a too rapid actuation ofthe parts of the machine; also, to provide new and improved means forholding the type-wheels in set position and for releasing them andreturning them to their original positions; also, new and improvedcarrying devices in the adding mechanism which will be simple inconstruction and certain in operation; also, to provide means forresetting the total-adding wheels capable of being thrown out ofoperative position during the ordinary adding operation; also, toprovide means for severing the connection between the total-addingwheels and driving mechanism of the machine for the purpose of resettingthe former without affecting the driving mechanism; also, to providemeans for preventing the printing of unnecessary ciphers; also, new andimproved means for feeding the paper strip.

Our invention consists in the novel devices and combinations hereinshown and described.

Our improvement is shown in connection with a calculating-machineadapted for bringing numbers mounted upon suitable type- Wheels upon aprinting or reading line and in connection therewith for adding thenun;-

bers set up from time to time upon the ma chine. It can be used,however, in part, at least, in machines in which other characters thannumbers are used and in which the characters are set up either forprinting or reading purposes or for adding purposes, or for any two orall of these purposes.

In the drawings accompanying this specification and forming part hereofWe have shown and will now proceed to describe a machine embodying ourinvention in its preferred form.

In the drawings similar reference characters in the different figuresrepresent corresponding parts.

Referring now to the specific embodiment of our invention shown in thedrawings, Figurel is a plan View of such a machine with certain partsbroken away. Fig. 2 is a vertical longitudinal section on the line A Aof Fig. 1 Viewed as shown by the arrows.

3 is a vertical cross-section taken on the line B B of Fig. 1 viewed asshown by the arrows. Fig. 4 is a similar view taken on the line C O ofFig. 1. Fig. 5 is a vertical longitudinal section taken on the line D Dof Fig. 3. Fig. 6 is a similar view taken on the line E E of Fig. 3.Figs. 7 and 8 are details of the adding and carrying mechanism. Fig. 9is a plan of the total-adding wheels. Fig. 10 is a central verticalsection of the same. Fig. 11 is a detail of one of the stationary platesintervening between the total-adding wheels. Fig. 12 is one of thetotal-adding wheels. Fig. 13 is a cross-section through a set ofresettingwheels. Figs. 14 and 15 are details of the reprintingmechanism. Fig. 16 is a diagrammatic view intended to illustrate onemovement throughout the machine. Fig. 17 is a side view of theink-ribbon-feed mechanism. Fig. 18 is a detail View of the pawl-changingplate for reversing the ink-ribbon feed. Fig. 19 is a plan of theink-ribbon-feeding mechanism. Fig. 20 is a rear view of theink-ribbon-feeding device, and Fig. 21 is a front View of the same. Fig.22 is a section on the line F F of Fig. 19. Fig. 23 is a section on lineG G of Fig. 19. Fig. 24 is a detached View of one of the wheels on themain driving-shaft, showing the fast and loose parts of the wheel andconnections. Fig. 25 is a detail of the device for releasing the setkeys without operating the machine, and Figs. 26 and 27 are details ofthe device for locking the swinging support to the carriage of theimpression-roller.

Before proceeding to describe in detail the embodiment of our inventionshown in the drawings we will for purposes of clearness first brieflydescribe the work done by that machine, referring in this connectionmore particularly to Figs. 1, 2, and 16,. Our said machine is providedwith a bank of keys 1, arranged in series in the usual way. The machineis operated by depressing the suitable keys and by turning a crank 2.Each key as it is depressed or set is locked in its set position and isautomatically released toward the end of the revolution of crank 2, andwhenever one key of a series is moved to its set position it looks allof the other keys of the same set, so that none of them can be depresseduntil the first key has been returned to its original position after theoperation of printing or adding has been accomplished. This locking ofthe keys in their set position and the locking of all of the other keysin a series when one is operated to prevent the operation of the othersare effected by means of locking-plates 3 and their connections,presently to be described, one of these looking-plates 3 being providedfor each series of the bank of keys. As each key is movedinto setposition the lower end of its shaft is depressed, as shown in Fig. 16,and is projected into the path of a projection from one of a set ofwheels arranged upon ashaft 4, which is rotated by crank 2 in a mannerpresently shown in Fig. 16 at 5. As many wheels 5 are provided uponshaft 4 as there are series of keys. Each wheel 5 is composed in theform shown in the drawings of two partsone part 6, which is fast toshaft 4t, and the part 7, which is loosely mounted upon the shaft. WVhenshaft 4 rotates as crank 2 is turned, the fast parts 6 of these wheelscause the loose parts 7 of wheels 5 to rotate. This is done by means ofa detachable lock,presently to be described,which at times connect-sparts 6 and 7 rigidly together and at other times is freed, so as todisconnect them. Normally the lock connects the parts 6 and 7 together.As shaft- 4 rotatesa projecting portion of the loose part '7 of thewheel strikes against the stop formed by the innerend of the depressedkey 1. This causes the detachable lock connecting parts 6 and '7 to befreed, disconnecting those parts and permitting part 5 to rotate onwardwith shaft 4 and crank 2, while the loose part 7 is held against thestop-key 1. Ofcourse the disiancetraversed by wheel 5 before it comes toa stop depends upon which one of the keys of the series is depressedkey9, for example, allowing a farther rotation than any lower key. Teeth 8upon a segment of wheel 5 mesh with teeth 9 upon a segment of type-wheel10, the latter carrying type 11, adapted to be brought upon a printingor reading line 12 as type-wheel 10 is rotated. Type-wheels 10 areloosely arranged upon a shaft 13, and one type-wheel is provided foreach series of the bank of keys. The number of each type-wheel broughtupon the printing-line will of course be dependent upon the keydepressed in its series of keys. The type-wheels 10 are held in setposition by a series of spring-pressed pawls 1 1-, mounted upon a shaft15.

A strip of paper upon which the numbers that have been set up on theprinting-line are to be printed is passed below impression or platenroller 17, the latter giving suitable printing pressure.

By depressing any one or more keys and turning crank 2 a number composedof the digits corresponding with those of the depressed keys will bebrought upon the printing-line and will be printed upon the paper. Atthe same time and by the same operation the number thus set up will beadded upon the total adding wheels 26. There is of course one of thesewheels for each series of keys. Motion is transmitted from type-wheels10 through teeth 19 to the total-adding wheels through a series ofreciprocating toothed segments 20 and transferring-wheels 21, 22, 23,and 24 and gears 25 on the shaft of the totaladding wheels,suitablepawls being employed to prevent backward rotation of the parts of thetransferring-wheels and suitable mechanisn or carrying from one wheel tothe next higher wheel, all of which will be presently described. In thisway each number that is Y set up on the printing or reading line is alsoto be described. One of these wheels is added to the numbers on theadding or type ICC IIC

til

line of total-adding wheels 26. An impression of the total may beobtained at any time through any suitable means. For this purpose weshow an ink-ribbon 226, upon which a piece of paper may be placed andpressure obtained in any suitable way to obtain the printed total.

In the course of rotating crank 2 the paper and ink-ribbon which areprovided for receiving the imprint from the characters on thetype-wheels 10 are automatically fed forward, the numbers are printed onpaper through suitable impression mechanism, and then the type-wheelsand the shaft with its wheels and the keys are all released and returnedto their normal position, and this is done in the form shown in thedrawings automatically. All of these operations are performed by a rota-Lion of crank 2 in one direction only and in one complete revolution ofthe crank.

At the close of its revolution we preferably automatically bring crank 2to a full stop to prevent a second operation of the machine too quicklyand before the parts have been enabled to return to their normalpositions, as will be presently described. We also provide suitablemechanism for resetting the total-adding Wheels so as to bring thosewheels each to zero. This resetting mechanism consists of a series ofresetting-wheels 27, which are so arranged as normally to bedisconnected from the total-adding wheels and their driving mechanism,as shown in Fig. 16. Then it is desired to reset the total-addingwheels, the crank 22 i is turned, which rofates shaft 28, causing cam 29to force downward rocking piece 30, pivoted at 31. Rocking piece 30forms the bearing of shaft 32, upon which the transferring-wheels 23 aremounted. The downward movement of rocking piece 30 thus separatestransferringwheels 23 from wheels 24, thus disconnecting thetotal-adding wheels from the driving mechanism of the machine. By meansof pin 34E at the upper end of rocking piece 30 working between thefingers 35 of rocking piece 37 the latter rocking piece is rocked uponits bearings 36. Rocking piece 37 carries shaft 38,upon whichresetting-wheels 27 are mounted. The same motion of cam 29 thatdepresses rocking piece 30 and separates transferringwheels 24 and.23also brings resetting- Wheels 27 and transferring-wheels 24c intoengagement with each other. By turning crank 225, secured to shaft 38,the resetting-wheels are moved and transmit motion to the total-addingwheels 26, moving them back each to zero.

We will now proceed to describe more in detail each of the parts andoperations referred to above.

Locking devicesfor keys and their releasing mechanism.These are moreparticularly shown in Figs. 1, 2, 3, let, 15, and 16. Each series ofkeys is provided with a locking-plate position and to prevent theactuation of more than one key of the series at a time. As shown, plate3 is adapted to slide in the line of the series of keys, pins 48,projecting from the framework into openings 58 of the plate, permittingthis movement. Each sliding plate is provided 'with a series of inclinedslots 57, one for each key, the mouth of each slot registering normallywith a pin or projection 47, forming part of the stem of the key. When akey is depressed, pin 47 enters its slot 57 and presses the slidingplate to the left, as viewed in Fig. 2. A spring tends to hold thesliding plate in its former or righthand position, as viewed in Fig. 2,and to return it to that position when the sliding plate is released, ashereinafter described. When a key has been depressed to its full extent,sliding plate 3 has been pushed to the left and is locked in thatposition by the following-described means: Loosely secured to the leftor lower end of sliding plate 3, by means of a pin and fingers 59, is arocking lever 60, pivoted at 61 and carrying at its outerend a pin 62.The latter pin is adapted to engage with a springpressed catch 49,pivoted at 50. This catch has a cut-away portion 51 at its upper end andis pressed by spring 52 against pin 62 of lever 60. Then sliding plate 3is pushed to the left by the depression of the key, pin 62 is moved intothe cut-away part 51 of catch 49 and is held in that position, thuslocking plate 3 and its depressed key in their set position. As shown,one lever 60 and one catch 49 are provided for each sliding plate 3.Whenever a sliding plate 3 is moved to the left, it not only looks thekey that has been depressed in its set position, but also prevents anyother key of the same series from being depressed until the first keyhas been returned to its normal position, as pin 47 of any other keydoes not now register with the corresponding slot 57, but will strikethe upper surface of plate 3.

All of the sliding plates and keys are released after the machine hascompleted its work toward the end of the revolution of the crank 2, andthis is done, preferably, by one common releasing deviceand-automatically. This releasing is effected through a releasingshaft53, provided with a toe 54:, running across the machine and engagingwith the toe 55 of each catch at), freeing the catch and permitting pin62 of lever to escape from the cut-away portion 51. The springs on thesliding plates return them to their proper positions, and the springs 56on the keys return them to their proper positions.

Crank-releasing shaft 53 is operated toward the close of the revolutionof crank 2 by the following means: On the shaft of the crank is mounteda disk (see Fig. 15) which carries a earn 216. Toward one end 'of shaft53 is fastened an arm 21%, which normally bears against the disk, so asto engage with cam 216.

3 to lock each key that is operated in its set 1 Cam 216 engages witharm 214toward the close of the revolution of crank 2, slightly rockingshaft 53 and causing the freeing of the locking-plates and keys, asabove described.

After a number has been brought upon the printing or adding line and hasbeen printed it is sometimes desired to reprint the same number withoutthe necessity of setting up again the same keys. For this purpose wehave provided means for throwing out of operative position the abovedescribed means for releasing the sliding plates and keys. For thispurpose we arrange shaft 53 so that it can have a slight longitudinalmovement in the direction of its length sufficient to cause arm 214 tobe moved out of the path of cam 216. To accomplish this, we use therighthand zero-key, (marked 211 in Fig. 1,) which is not needed forother purposes, and place upon its shaft an inclined surface 212. (SeeFigs. 14 and 15.) Then the key is depressed, it engages with the side ofan arm 213 upon shaft 53 and presses the shaft and arm 214 slightly tothe right, as viewed in Fig. lat. Accordingly when crank 2 is turned cam216 will not strike arm 214, and the keys will remain in said setposition. When crank 2 is operated a second time, the same number willbe printed, and so on until key 211 is permitted to return to its normalposition, which it will do through its spring when the key is released.It is also desirable at times to be able to return to its originalposition any key or keys that have been depressed without turning thecrank or printing or add ing. For this purpose we provide the followingmeans: The left-hand Zero-key (marked 225 on Fig. 1) being of no otheruse is employed for this purpose. It is so arranged that its stem willstrike another arm 226, projecting from shaft 53, and will rock thatshaft sufficiently to cause catches 49 to release lever and the slidingplates, permitting the keys to return to their normal position. By thesemeans any and all keys that have been set in position may be restored totheir normal positions at the will of the operator without operating themachine.

The crank, main driving-shaft, and its wheels-These are especiallyillustrated in Figs. 1, 2, 3, 4, 5, 6, and 16. Our device, as shown, isprovided with a main driving-shaft adapted to be rotated by crank 2 andimparts reciprocating motion to one or more wheels connected therewithto bring the desired characters upon the printing, reading, or addingline. The main driving-shaft 1 is preferably made in two separate anddistinct partsone part, 67, connected to the crank 2 and adapted with itto rotate in one direction only, and another part, 71, adapted to rockor oscillate. These two parts of the shaft are connected together by adetachable lock which is adapted to lock the two parts of the shafttogether to move the rocking part of the shaft in one direction as thecrank is rotated and to unlock them to permit the rock-shaft to bereturned to its normal position, as by wiaie means of spring 72, securedat one end to the framework of the machine and at the other end torock-shaft 72. As shown, the detachable lock and its connections are asfollows: Rigidly mounted upon shaft 67 is a disk 69, and similarlymounted upon shaft 72 is a disk 70. Pivoted to disk 69 at point 77 is alocking-piece 78, provided at one end with a lug 73, projecting sidewisetoward and over disk 70 and adapted normally to lie against shoulder 7aof disk 70. In this normal position of the parts motion is transmittedfrom shaft 67 and disk 69 through locking-piece 78, lug 73, and shoulder74- to disk 70 and shaft 71 and to the wheels mounted thereon, to bepresently described. When crank 2 has nearly made a full revolution andthe printing or adding has been completed, the end 75 of locking-piece78 passes under roller 76, secured to the framework of the machine, andis pressed downward, lifting lug 73 out of engagement with shoulder 74,as illustrated in Fig. 5. Spring 72 immediately returns shaft 71 to itsoriginal position.

By means of the detachable lock and the above-described arrangement ofthe drivingshaft made in two parts crank 2 can be rotated in the samedirection at all times, and the reciprocating or rocking motionnecessary to operate the type-segments can still be obtained.

Backward rotation of shaft 67 is prevented by means of a spring-pressedpawl 86, taking into the teeth of ratchet-wheel 80, mounted on shaft 67.(See Fig.

In order to prevent the too rapid actuation of the machine, we prefer tobring crank 2 to a full stop at the end of each revolution. Ourpreferred device for accomplishing this purpose consists of a movablestop 79, mounted in the framework of the machine and normally held byspring up out of engagement with the projection 81 onthe side of wheel80. (See Fig. 6.) Toward the close of the revolution of crank 2 and disk80 movable stop 79 is automatically moved into its operative position,or the position where its face 82 will strike projection 81. This isaccomplished by means of another projection 83 on disk 80. Projection 83is so placed that it will strike the rear end of movable stop 79 just intime to throw down the forward end or face 82 into the way of projection81, so as to be struck by the latter projection. This will bring thecrank to a stop and cause it to slightly rebound, when spring 80 willpull the movable stop up out of operative position, whereupon crank 2can be rotated again. If the rebound is not sufficient for this purpose,a slight backward movement of the crank'2 will suffice to release themovable stop.

Upon part 71 of the main driving-shaft are mounted a number of wheels,one for each series of keys, to transfer the motion of the shaft to thetype-wheels to bring the proper characters upon the printing, reading,or

adding line. These wheels, which are designated 5 in the drawings, arecomposed of two parts-one part, 6, rigidly connected to the shaft andthe other part, 7, mounted loosely thereon. Weprovideadetachableloclgwhich is adapted to connect the two parts rigidlytogether to cause the fast part to rotate the loose part a certaindistance, whereupon the lock is operated to disconnect them to permitthe loose part to stop while the fast part rotates onward with theshaft. As shown, this detachable lock consists of a swinging piece 64,pivoted to loose part 7 at and normally held by spring 66 in theposition shown in Figs. 2 and 16. Swinging piece 64: has a projectingknob adapted to strike the lower part of the stem of any key in its series when depressed, and it has also a lug 6t,

(see Fig. 24,) adapted normally to lie over or in front'of a shoulder 71on the fast part 6 of the wheel. In the former position of the parts lug6t is in contact with shoulder 71, and when the main shaft is rotatedthe shoulder through lug Get pushes or rotates the loose part 7 of thewheel until its knob strikes the inner end of a depressed key. Thistilts piece 64, throwing the lug 6% out of engagement with shoulder 71,whereupon loose part 7 of the wheel is held with its knob against thestem of the depressed key, while the fast part 6 of the wheel is rotatedby the shaft and the crank farther on waril. The distance that the part7 of the wheel rotates is dependent upon which one of the series of keysis depressed, and through the teeth 8 of its segment meshing with teeth9 on type-Wheel 10 the latter is rotated a similar distance, bringingthat one of type 11 upon the printingline which corresponds with the keythat has been depressed.

By the above means a plurality of wheels can be arranged upon a shaftand all be rotated by the same shaft and by the same movement; but thesaid wheels can be sufficiently independent of one another to allow eachwheel to travel its own distance irrespective of that traveled by theother wheels, enabling each wheel to bring its proper number upon theprinting-line.

- In order to insure that each loose part 7 of the wheel shall be heldin its set position after'its knob 64 strikes the stem of a depressedkey, we preferably connect the fast and loose parts of each wheeltogether by means of a spring 6, which, as shown, is arranged betweenthe two parts of the wheel and is secured to both.

When the part 71 of the main driving-shaft is released and returns toits original position under the stress of spring 72, a shoulder 227,preferably provided with a rubber buffer, of fast part 6 let each wheelstrikes against a shoulder 228 of the loose part 7 of the same wheel,carrying the loose part back to its original position.

In order toequalize the pressure upon the crank and shaft throughouttheir rotation,

we preferably arrange the wheels 5 and their segments, bearing teeth 8,in echelon upon shaft 4as shown, for example, in Fig. 2. By these meansthe work of rotating the different parts is distributed equallythroughout the rotation of the crank and its shaft.

The type-wheels, their locking-pawls, and their releasingmechcmz'sm.After the typewheels 10 have been moved into set position itis necessary to hold them there during the printing operation. Anysuitable mechanism may be employed for this purpose. The means we preferto employ are shown in Figs. 2, 3, 4t, and 16 of the drawings andconsist of a series of pawls 14, one for each typewheel 10, looselymounted upon abar 15 and pressed by a spring normally in engagement withthe ratchet-teeth 227 of type-wheel 10 and holding those wheels in anyposition into which they may be moved. We preferably arrange means forreleasing all of these pawls at the same time to permit all of thetypewheels to return to their original position at once. As shown, thisis accomplished by means of an arm 229, rigidly secured to shaft 15 andhaving a toe at itslo'wer end. A cam 230 upon shaft 71 toward the closeof the rotation of the shaft lifts the toe of arm 229 and rocks shaft 15slightly. Each pawl 14 is mounted like a sleeve upon shaft 15, but has apart cut away on one side of pin 15, which projects from shaft 15. Thepart cut away is to enable each pawl 14 to move slightly to the left asviewed in Fig. 2 to permit wheel 10 to rotate. When arm 229 and shaft 15are rocked, however, pin 15 also rocks the sleeve of each pawl 14;,lifting it wholly out of engagement with ratchet-teeth 227, permittingtype-wheels 10 to be rotated backward by teeth of wheel 7 as they returnto their normal position.

By the above means each pawl is free to move against the pressure of itsspring independently of the other pawls sufficiently to permit itstype-wheel to rotate one way, and all of the pawls are positively movedin the same direction to unlock the type-wheels from the pawls to permitthem to rotate backward to their original positions, and all of thepawls are operated at once and automatically.

In order to permit the use of keys of sufficient size for practical useand the arrangement of wheels upon the main shaft with fast and looseparts, which necessarily requires considerable room, and yet to have thetype 11 on the type-wheels and the type on the total-adding wheels closetogether to print the numbers compactly and close together on therecording material, we have found it desirable to nest the bodies of thetype-wheels in the manner shown in Fig. 4. As there shown the type 11are arranged close together, while the bodies of the type-wheels 10 arespread apart and are somewhat nested in form to permit the gears 9 to bewide enough apart to register with the gears 8 of the wheel 7.

Printing mechanism. After the type- IIO wheels have been moved into setposition and the totals have been added and appear upon theprinting-line in the type of the total-adding wheels the machine isadapted to print the type of the type-wheels upon any suitable paper orrecord-surface and also, if desired, to print the totals of thetotal-adding wheels. \Vhile any suitable mechanism may be employed forthis purpose, we will now proceed to describe that shown in thedrawings. These are especiallyillnstrated in Figs. 1, 2, 3, 4, 6, and1'7. The impression-surface, as shown, consists of a roller 16, mountedin a swinging support carried upon a sliding carriage, the lattermovable upon a frame pivoted at one end and having means for swingingdown the other end to produce printing pressure. The frame consists oftwo cross-bars 101 and 106, the former being stationary and rigidlyfixed in suitable supports of the framework of the machine and thelatter being carried in the bearing-sleeves 125, one at each side of themachine, each sleeve supported by a rod 126, adapted to move verticallyin suitable bearings and connected to arm 97, the latter pivotallyconnected to arm 96. Arms 96 are secured at each side of the machine toa shaft 91. Secured to said shaft at one side of the machine is an arm90, carrying a roller 89, fitting into cam-groove 88 of cam-wheel 80,which latter rotates with the part 67 of the main shaft, as alreadydescribed. As crank 2 and shaft 67 are rotated a rocking movement isgiven to shaft 91 and at the proper time in the revolution of thecrankbar 106 is pulled downward, forcing impression-roller 16 downwardagainst ink-ribbon 12 and type 11 oftype-wheels 10, thus printing uponany strip of paper or other suitable record-surface which may beinterposed between roller 16 and ink-ribbon 12. For convenience wearrange straps 119, suitably secured, running down beneath roller 16 toact as guides for the paper which is inserted beneath the roller. Rod126 is composed in the usual way of adouble-threaded portion 127 and twonuts for adjusting its length. In order to permit the forward part ofthe frame to swing downward, the side pieces 103 and 104: are secured bycollars 102 to rod 101. These collars fit loosely upon rod 101 and forma pivotal connection at that end for the frame. The frame is thuspivoted at one end and is provided with means secured to the other endconnected with the driving mechanism of the machine for swinging theframe to produce a printing pressure.

The frame is provided at its forward end with a cross-piece 110, andthis cross-piece is connected with rod 106 by sleeves 107, whichencircle the rod and are loose thereon. The main part of the frame is inthis way made movable laterally, so as' to bring different parts of theprinting-roller opposite to the printing-type for the purpose ofenabling the numbers or characters to be printed in different columnsupon the record-sheet. In

the device shown in the drawings arrangement is made for three separatecolumns, and a pointer 109, mounted upon bar 110, and marks 108 on therod 106 show when the frame is in proper position to print the differentcolumns.

Preferably means are provided for rotating printing-roller 16 in orderto feed forward the record-strip. For this purpose I place a gear-wheel12% upon the shaft of the printingroller and cause it to mesh with agear-wheel 218 upon shaft This shaft is driven through a gear-wheel219,fixed uponit, and a pawl 220, secured to a vertically-movable plate 157.The mechanism for driving this consists, as shown, of the followingdevices: Mounted upon shaft 67is a cam 68. Thetoo of arm 94, secured toa sleeve 92, moving freely upon shaft 91, engages with cam 68. Securedto sleeve 92 atone side oft-he machine is an arm 150. Pivotally securedat the other end of arm 150 is a rod 154, carryinga block 155 and a pin156, secured to the block and to plate 157. As cam 68 rotates arm 150 isslowly depressed and then is quickly raised, thus rotating shaft 223 androller 16 and feeding forward the record-strip for the nextimpression.This feeding of the paper takes place just before the printingoperation.

Rod 15st and arm 150 are adjustably connected by block 152, into whichrod 154 is screwed, block 152 being capable of being moved along slot151 and being fastened in the usual manner at any point along that slot.Spring 153 tends to hold arm 150 upward as viewed in Fig. 17.Byarrangingthree gears 218 at the proper points on shaft 223 gear 124makes connection with that shaft and is driven thereby at any one of thethree lateral positions of roller 16. Of course any other number ofcolumns could be provided for by arranging the necessary number of gearson shaft 223.

Thumb-screw123 enables the operator to turn roller 16 and feed the paperat will.

In order to be enabled to print the totals upon the record-sheet at anytime desired, we preferably provide an inking ribbon 226, mounted uponspools 227 over the total-printing wheels along the printing-line, andwe arrange the printing-roller upon a carriage, which is free to movealong the frame at right angles to the axis of the printing-roller.

The carriage in question is composed of side pieces 120, connected bycross-pieces 11 1 and 115. Sleeves 105, connected to cross-pieces 120and loosely encircling bars 103 and 104, support the carriage upon theframe and permit it to move at right angles to the axis of theprinting-roller. This is to enable the printing-roller to print eitheronthe printingline over type-wheels 10 or to print the totals over theprinting-line of the total-adding wheels.

e preferably mount the impression-roller so that it can be swung upwardand for this purpose provide a swinging support upon the carriage. Asshown, this is constructed by means of sidegbars 121, which arepivotally secured to cross-piece 115. The swinging support is providedwith cross-pieces 117 and 118. Springs 116, secured to cross-pieces 115and 117, tend to swing the forward or lefthand end of the swingingsupport upward. To counteract the spring, we provide a locking device atthe forward end to connect the swinging support rigidly to the carriage.The particular device shown for this purpose consists of pins 116,secured to side pieces 12], which are adapted when the frame is presseddownward to pass through an opening 115 in sleeve 111, surroundingcross-piece 114 and taking into a groove 113 between cross-piece 114 andsleeve 111, as shown in Figs. 26 and 27. After the pins 116 have beendepressed through openings 115 sleeve 111 is slightly rotated by meansof thumbpiece 112 into the position shown in Fig. 27. This looks thepins and the swinging frame rigidly to the carriage. When sleeve 111 isrotated the other way, so that opening 115 registers with pins 116*, thesprings 116 force the free end of the swinging support away from thesliding carriage. Access may then be easily and conveniently had to theprinted record.

The adding-wheels and their carrying (Zeeices.These are particularlyshown and illustrated in Figs. 1, 2, 7 to 13 and 16. Motion istransmitted from the type-wheels 10 to the total-adding wheels 26 bymeans of toothed segments 19 on type-wheels 10 by a series of rockingsegments 20 and transferring-wheels 21, 23, and 24. Each segment 19meshes with the teeth of the corresponding segment 20, loosely mountedon shaft 31, each segment being held in normal position by spring 147,suitably secured to the framework of the machine. As shown in Fig. 2,spring 147 is connected to bell-crank 14S and the latter by spring 149to rod 150. This arrangement is for the purpose of producing a more evenpull of the spring and to permit fine adjustment of it. Each segment hasalso a pawl 146, held by a spring 145 in engagement with the teeth of aratchet-wheel 22, forming part of wheel 21, also loosely mounted onshaft 31. Each wheel 21 is provided with a set of gearteeth which meshwith the gear-teeth 23 of a corresponding wheel 23, loosely mounted onshaft 32. As many wheels 21 are provided as there are type-wheels 10,and each of these Wheels 21 hasa corresponding wheel 23. Two parallelsets of wheels are thus provided-one loosely mounted on shaft 31 and theother on shaft 32. Each wheel of the second set that is thus mounted onshaft 32, excepting the one representing the highest order of digits, isprovided with suitable mechanism for meshing into the ratchet-teeth of awheel in the first setthat is, in the set mounted on shaft 31,representing the next higher order of digitsfor the purpose of carryingto that higher order. One or any number of carrying-pawls may bearranged on each wheel 23. As shown, we prefer four pawls 141,eachloosely mounted upon pin 142, with a stop 143. These pawls are of coursearranged at such a distance apart on the wheel 123 that they will feedwheel 121 of the nexthigher order of digits one tooth forward for eachten teeth moved on lower wheel 21. Each wheel 21 on shaft 31 issimilarly provided with a set of gearteeth to mesh into the gear-teeth23 of its wheel 23. The pawl 41 is held by spring 43 in engagement withthe ratchet-teeth of each wheel 22 and prevents backward rotation ofsuch wheel. Geanteeth 23 mesh into the gear 139 of each wheel 24, andthis motion is transmitted to each total-adding wheel 26 through itsgear 25. By these means the numbers set up in type 11 on theprinting-line are added, the total appearing on the adding or printingline .of the total-adding wheels 26. By using two parallel sets ofwheels the carrying is done easily and accurately with little frictionand with very simple mechanism, and the mechanism is not easily thrownout of'accurate working order.

Dericesfor resetting total-adding wheels. These are illustratedespeciallyin Figs. 1, 2, 13, and 16. For the purpose of enabling thetotal-adding wheels to be reset easily and with little friction and toavoid the necessity of driving the resetting devices during the ordinaryoperation of the machine we provide means for throwing the resetting andtotaladding wheels into and out of connection with each other and alsomeans fordisconnecting the total -adding wheels and the drivingmechanism of the machine. We are thus enabled to reset theadding-wheels, without moving backward all of the driving parts of themachine, and we are enabled to operate the machine in its'ordinary waywithout moving backward the resetting devices. We will now proceed todescribe the preferred form of these resetting devices as the same areshown in the drawings.

Ve provide a series of resetting-wheels 27, one for each total-addingwheel. These are frictionally mounted upon shaft 38, supported in aswinging frame 37, pivotally mounted upon shaft 36, secured to theframework of the machine. By swinging frame 37 upon its shaftresetting-wheels 27 may be caused to engage with wheels 24 or to be separated therefrom. Ordinarily, as during the regular printing and addingoperations of the machine, they are separated, as shown in Fig. 16. Whenit is desired to reset the total-adding wheels, wheels 27 are throwninto e11- gagement with wheels 24, and shaft 38 is rotated by means ofcrank 225, secured to its end to move the total-adding wheels back tozero.

At the same time that wheels 27 and 24 are brought into engagementtransferring-wheels 23 are separated from wheels 24, and when wheels 27are separated from wheels 24 transferring-wheels 23 are connected withthe lat- ICO SD V

ter. To accomplish this, we mount shaft 32, which carries wheel 23, intwo rocking frames 30, each frame pivoted to the framework of themachine on shaft 31 and normally held upward by spring 46. Each rockingframe 30 carries at its upper end a pin 34:, which works between fingersof piece 37, as shown in Fig. 16. Acam 29 is mounted upon a shaft 28, atthe outer end of which is secured the handle 224. By turning handle 224the cam throws rocking frames 30 downward, separating wheels 23 and 2 1and connecting resetting-wheels 27 with thelatter. By now turning handle225 in the proper direction the total-adding wheels are reset at theiroriginal or zero positions. By turning crank 224 back to its originalposition connection is broken between wheels 27 and 21 and made betweenwheels 23 and 24, and the machine is in con dition for furtheroperation.

Resetting-wheels 27 are frictionally mounted on shaft 38, and betweenadjoining wheels are placed circular friction-plates 137. By means ofthis frictional arrangement one wheel can stop before another when ithas reset its wheel at zero, at the same time permitting the otherresetting-wheels to continue their resetting work and yet have all ofthe wheels driven from one common source of power. By means of endplates 39 and screws 138 the frictional pressure upon wheels 27 can beregulated. For this purpose frictional plates 137 are frictionallymounted upon shaft 38.

In order to furnish a stop for each totaladding wheel to prevent itsrotation back of zero and also to cause the cipher on each wheel to liebelow the printing-surface when it is not necessary to have it printed,we provide a stop to prevent such backward rotation, and we make thecipher or zero type of each total-adding wheel movable and provide meansfor raising it to and holding it upon the printing or reading level andfor depressing it below that level when it is desired. In the form shownwe accomplish thisby the following-described devices: Between thedifferent total-adding wheels 26 we arrange collars 128, adapted to fitover the shaft of the total-adding wheels and secured to two adjoiningshafts 131, as shown in Fig. 9. Each collar is provided with a cam. Asshown, it takes the form of a cam-groove 133 in the side of collar 128.129 is the movable type carrying a cipher, and 136 represents the top ofthe other digits. Movable type 129 is fitted into a space 135 in eachtotal-adding wheel 130, and when the total-adding wheels and the collarsare arranged as shown in Fig. 9 each type 129 is located in its space135, but is free to move up and down or radially in that space and isguided in that movement by a pin 130, projecting from the side of themovable type and adapted to take into camgroove 133. This cam-groove isso arranged that during the greater part of its length it holds type 129outward or upward, so that it is on the printing-level or the same levelas the other type upon the wheel. At a point, however, just to the rightof the printingline, as shown in Fig. 11, this cam-groove drops downwardand is cut backward or to the left at point 132 until it comes under theexact printing-line. This leaves a slightly overhanging portion of theunder or inner surface of the cam-groove, which overhangs the cut-awaypart 132. In operation camgroove and pin 130 hold type 129 outward andupward until it reaches the printing-line and a short distance beyond,when the type 129 falls downward below the printing-level. In theregular operation of the machine, however, it is soon raised again tothe printinglevel. If,however,the total-adding wheels are movedbackward,as in the resetting operation, pin 130 will be carried into therecess or cutaway portion 132, thus bringingits total-adding wheel to astop and preventing further backward rotation. At this point theZerotype 129 is below the printing-level, thoughin a vertical plane withthe printing-line. This is the normal position ofall the ciphers whenthe total-adding wheels have been reset. Whenever any one of thetotal-adding wheels is moved to the right in the regular operation ofthe machine, the cipher is raised to the printing-level and ismaintained there at all times thereafter whenever that type is on theprinting-line and is thus always thereafter printed; but until itstotal-adding wheel has been moved the cipher is never printed.

ICO

In this way we are able to prevent the unnecessary printing of ciphersto the left of any one or more numbers that are printed on the machine.At the same time we afford a convenient and simple step for bringing thetype-Wheels into their original position when reset.

Cam-groove 133 is shown as bringing type 129 up to the printing-levelimmediately after the commencement of movement of the totaladding wheel.This is not essential, however, as the only requisitein this connectionis that the type should be brought to the printing-level before itreaches the printing-line.

Ili'echam'sm for feeding the tn7r-ribbon. The mechanism for feedingtheink-ribbon 12 is shown in Figs. 1, 17 to 19, and 20 to 23. Theink-ribbon is mounted -upon two spools 160 and 207 and is arranged to befed forward automatically as the machine operates, and means areprovided for automatically reversing the direction of feed. Spool 160 isfrictionally mounted upon shaft 162, the frictional engagement beingassisted by spring 161, which presses spool 160 against the innerenlarged part of shaft 162, as clearly shown in Fig. 19. Mounted uponshaft 162 is a gear 160. 161 is another gear arranged alongside of gear160 though not connected therewith. Gear 161 when rotated drivesa shaft188, mounted in suit-able bearings. Connected to the end of this shaftby collar 139 and adjusting-screws is a flexible shaft 187 for

